Home / 13,358.97-20,039.64-3,498.21

Finding the Fourth Proportional to 13,358.97, 20,039.64 and 3,498.21

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Solution

The fourth proportional to 13,358.97, 20,039.64 and 3,498.21 is: 5,247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.97 : 20,039.64 = 3,498.21 : x
  2. Step 2: Convert to fraction form
    13,358.97/20,039.64 = 3,498.21/x
  3. Step 3: Cross multiply
    13,358.97x = 20,039.64 × 3,498.21
  4. Step 4: Simplify right side
    13,358.97x = 70,102,869.04
  5. Step 5: Solve for x
    x = 70,102,869.04/13,358.97
  6. Step 6: Final answer
    x = 5,247.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.